Hypernatremic dehydration in neonates requires cautious, gradual correction to prevent cerebral edema. Key points: serum sodium should not drop faster than 0.5-1 mEq/L/hour (max 10-12 mEq/L per day), fluid deficits are replaced over 48-72 hours, and the underlying cause (usually breastfeeding failure) must be addressed.

Good, I found relevant sections. Let me read the most pertinent ones - Harriet Lane (pediatric/neonatal handbook) and the nephrology/clinical sections.

Good content - now let me get the Harriet Lane neonatal/fluid chapter and the nephrology treatment figure detail, plus search for neonatal-specific content.